Find the specified probability.
-There are only 8 chairs in our whole house. Whenever there is a party some people have no where to sit. The number of people at our parties (call it the random variable X)changes with each party.
Past records show that the probability distribution of X is as shown in the following table. Find the
Probability that everyone will have a place to sit at our next party. $\begin{array}{cccccccc}
\mathrm{X} & 5 & 6 & 7 & 8 & 9 & 10 & 10 \
\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.05 & 0.20 & 0.15 & 0.15 & 0.10 & 0.30
\end{array}$
A)$0.55$
B) $0.45$
C) $0.15$
D) $0.05$

Question

Find the specified probability.
-There are only 8 chairs in our whole house. Whenever there is a party some people have no where to sit. The number of people at our parties (call it the random variable X)changes with each party.
Past records show that the probability distribution of X is as shown in the following table. Find the
Probability that everyone will have a place to sit at our next party. $\begin{array}{cccccccc}
\mathrm{X} & 5 & 6 & 7 & 8 & 9 & 10 & >10 \
\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.05 & 0.20 & 0.15 & 0.15 & 0.10 & 0.30
\end{array}$
A)$0.55$
B) $0.45$
C) $0.15$
D) $0.05$

Quizplus · Accepted Answer

The probability that everyone will have a place to sit is the sum of probabilities for X = 5, 6, 7, and 8, which is 0.05 + 0.05 + 0.20 + 0.15 = 0.45.

Find the Specified Probability A) 0.550.550.55 B) 0.450.450.45 C) 0.150.150.15 D) 0.050.050.05

Find the Specified Probability A) $0.55$ B) $0.45$ C) $0.15$ D) $0.05$